baber/WOPTO huggingface dataset:
Patent CA-2240920-C (CA)
Title: Hypodermic needle assembly
Inventor: MAHURKAR SAKHARAM D
IPC: A61M5/32
Filed: 1998-06-17
Granted: 2003-01-28
Abstract: A hypodermic-needle sample collection device includes an elongated, generally cylindrical barrel forming an aperture at the distal end of the barrel and opening into the interior of the barrel, and a needle holder mounted for longitudinal movement within the barrel. The needle holder includes a pin projecting laterally therefrom. A hollow needle carried by the needle holder projects from the holder along the axis of the barrel. The pin is guided by longitudinal linear and spiral guide surfaces extending along at least a portion of the length of the barrel for moving the needle longitudinally within the barrel in response to relative rotational movement between the linear and spiral guide surfaces.
Patent CA-2241877-C (CA)
Inventor: KRAL RUDOLF
IPC: F22B29/06
Filed: 1996-12-17
Granted: 2006-01-24
Abstract: Cet évaporateur en continu (2) comprend un carneau de gaz formé de tubes évaporateurs (10) soudés les uns aux autres de manière étanche au gaz au moyen de parties jointives (13). Les tubes évaporateurs (10) sont connectés en parallèle pour laisser passer un milieu en écoulement et présentent sur leur face intérieure une structure superficielle qui génère une grande turbulence d'écoulement dans le milieu en écoulement. Ces tubes évaporateurs se situent dans la zone de combustion (V) du carneau de gaz à peu près dans un enroulement en spirale. Afin de pouvoir exploiter de tels évaporateurs en continu (2) même sous des charges réduites équivalant par exemple à environ 20 % de la charge prévue, sans que des contraintes thermiques excessives ne se produisent, les tubes évaporateurs (10) de l'évaporateur en continu (2) sont conçus de sorte que pendant leur exploitation, la perte de pression géodésique du milieu qui les traverse s'élève à au moins 0,5 fois ses pertes de pression par friction.
Patent CA-2246640-C (CA)
Inventor: MORDAUNT DAVID W
IPC: H01S3/0941
Filed: 1998-09-04
Granted: 2001-10-09
Abstract: There is provided an optically pumped laser apparatus 10 which includes a heat conductive assembly 14 which is affixed to a solidstate yag laser crystal medium for generating a laser beam 49 within the laser crystal medium 12. The heat conductive assembly 14 comprises a heat diffusing element 32 which serves to diffuse the heat that is generated through the cooling surfaces 24 and 26. It includes a heat discharging structure 37 for removing the heat from the system. The efficiency of the laser system is improved by the geometry of pumping the crystal laser medium along the paths shown by the arrow 40 and to directing heat removed by the heat conductive assembly along the arrows 42, which paths are normal to one another and which provide an effective geometry that minimizes temperature variations within the laser crystal 12 to provide a low value for the OPD of the system. The heat conductive assembly 14 may include a liquid type heat exchanger 43, or heat pipes 33 to facilitate removal of the heat from the diffuser 32.
Patent CA-2248360-C (CA)
Title: Upflow fixed bed reactor with packing elements
Inventor: ALLAN EDGAR DONALD
IPC: B01J8/02
Filed: 1997-03-20
Granted: 2004-08-31
Abstract: A reactor system for conducting chemical reactions is presented in which a reactor (4) is operated in an upflow mode with a fixed bed catalyst (25) and randomly distributed reactor packing therein (24). The reactor system and the process in which it is used exhibit plug flow behaviour and are amenable to employing lightly cross-linked ion exchange resin catalysts.
Patent CA-2252049-C (CA)
Inventor: SHEN STEVEN X
IPC: G02B6/44
Filed: 1998-11-23
Granted: 2003-06-10
Abstract: A method of making an optical fiber ribbon with improved planarity and an optical fiber ribbon having improved planarity are described. The method includes the steps of providing a plurality of optical fibers and arranging the plurality of optical fibers to form a planar optical fiber arrangement. The planar optical fiber arrangement defines a first common tangent plane and a second common tangent plane. Matrix material is applied to the planar optical fiber arrangement to form a first uncured layer of matrix material such that the first layer does not extend beyond the first or the second common tangent plane by more than twenty micrometers. The first uncured layer of matrix material is then cured to achieve a degree of cure between 70% and 95% to provide a cured first layer of matrix material on the planar arrangement. Next, matrix material is applied over the first cured layer to form a second uncured layer of matrix material. Finally, the second uncured layer is cured until a degree of cure in the second layer is at least 85% to form an optical fiber ribbon with improved planarity. The optical fiber ribbon of the present invention can be made according to the method described.
Patent CA-2256822-C (CA)
Inventor: RAMESH NALLEPILLI S
IPC: H04J11/00
Filed: 1998-12-21
Granted: 2003-01-14
Abstract: A wideband CDMA transmission system is disclosed that incorporates transmit diversity in both frequency and space. Some embodiments of the present invention are capable of transmitting a wideband signal with a high data rate to an appropriately-designed wideband CDMA wireless terminal and are also capable of transmitting a narrowband (e.g., IS-95 compliant) signal to a CDMA wireless terminal in the prior art. Some embodiments of the present invention are capable of co-existing in the same frequency spectrum that is allocated to existing narrowband wireless systems. And in some embodiments of the present invention the coded symbols from the interleaver are distributed among multiple earners that are then radiated by spatially separated antennas. An illustrative embodiment of the present invention comprises: receiving a datastream of symbols that is to be transmitted to one wireless terminal; distributing at least some of the datastream of symbols to a first derivative datastream of symbols;  distributing at least some of the datastream of symbols to a second derivative datastream of symbols;  modulating the first derivative datastream of symbols onto a first carrier frequency to create a first modulated carrier; modulating the second derivative datastream of symbols onto a second carrier frequency that is different that the first carrier frequency to create a second modulated carrier; radiating the first modulated earner from a first antenna; and radiating the second modulated carrier from a second antenna that is separated from the first antenna.
Patent CA-2258338-C (CA)
Inventor: PEZESHKI FARHAD
IPC: G06F21/75
Filed: 1999-01-11
Granted: 2009-02-24
Abstract: A method of masking a conditional jump operation in a cryptographic processor, wherein program execution jumps to one of two branches dependent on a first or second condition of a distinguishing value V relative to a reference wherein the reference is bounded by an upper limit Vmax and a lower limit Vmin. The method comprising the steps of determining the location of a conditional jump and inserting code thereat for executing instructions to change program execution to a respective one of the two branches by using said distinguishing value and a base address to compute a target address, wherein for each evaluation of said condition a different number of instructions are executed, thereby minimizing the effectiveness of a differential power attack.
Patent CA-2260543-C (CA)
Inventor: GEIBEL JOHN
IPC: B01D29/62
Filed: 1999-01-28
Granted: 2005-05-03
Abstract: A concurrent backwash distribution apparatus for a filter having a filter tank and a plurality of underdrain laterals includes a baffle positioned in a common main conduit to define an auxiliary flume between the baffle and the underdrain laterals. The auxiliary flume is in fluid communication with the common main conduit and the underdrain laterals. The baffle has at least one flume liquid metering orifice preferably located near the bottom of the baffle so that it may be below a gas/liquid interface in the auxiliary flume during concurrent gas/liquid backwash operations. A flow distribution plate may be positioned between the auxiliary flume and the underdrain laterals, the flow distribution plate having at least one liquid metering orifice and at least one gas metering orifice. The baffle may take one of many forms. The baffle creates an adequate liquid pool in the common main conduit for low velocity flow of backwash liquid while at the same time providing uninhibited flow of backwash gas. Maldistribution is thereby controlled. Stand-pipes may be used in place of the baffle. A method for concurrent gas/liquid backwash according to the invention is also disclosed. The invention may be applied to flat bottom flumes or insufficiently recessed flumes.
Patent CA-2262840-C (CA)
Inventor: RUDOLPH ROBIN RICHARD
IPC: A61K31/201
Filed: 1997-08-01
Granted: 2006-12-05
Abstract: A flea infestation in the hair coat of a terrestrial mammal, notably dogs or cats, is controlled, eliminated or prevented by the systemic administration to the mammal of a 2,4-dienoic acid, salt or ester insecticide in an amount that is lethal to the fleas and/or their eggs, yet not sufficient to maintain a concentration of the insecticide in the host animal's blood that would be lethal to the fleas or their eggs if the fleas or eggs were fed exclusively and directly on the blood.
Patent CA-2263822-C (CA)
Inventor: MATSUYAMA SHIN
IPC: B65D47/14
Filed: 1999-03-02
Granted: 2005-05-03
Abstract: A drinking receptacle cover to be removably applied to an opening of a receptacle main body. This cover has on its top plate a drinking spout which can be shut off and a negative pressure relief valve. The spout contains a drinking spout main body which protrudes from the top plate and has a channel; a drinking spout portion which is fitted on the drinking spout main body to be shiftable in the axial direction so as to open and close the channel; and a drinking spout cap which can be removably applied to the drinking spout portion; and the channel can be opened and closed by the shift of the drinking spout portion which occurs with fitting and removal of the drinking spout cap.
Patent CA-2273318-C (CA)
Title: Polyalkylene polysuccinimides and post-treated derivatives thereof
Inventor: HARRISON JAMES J
IPC: C10L10/00
Filed: 1999-05-28
Granted: 2009-02-17
Abstract: A polysuccinimide composition is prepared by reacting a mixture of an alkenyl or alkylsuccinic acid derivative, an unsaturated acidic reagent copolymer, and a polyamine under reactive conditions. The alkenyl or alkyl substituent of the alkenyl or alkylsuccinic acid derivative has a Mn of from 140 to 3000. The unsaturated acidic reagent copolymer has an average degree of polymerization of from 2 to 20, and is a copolymer of an unsaturated acidic reagent and an olefin having a Mn of at least 1000. The polyamine has at least three nitrogen atoms and has from 4 to 20 carbon atoms.
Patent CA-2276878-C (CA)
Inventor: JEFFCOAT WALTER
IPC: H01H85/54
Filed: 1999-07-02
Granted: 2003-02-04
Abstract: A disconnect box is provided in the present invention that has a rear wall and perimetrically bounding side walls connected thereto. A line wire and a load wire are received in the disconnect box, which comprises a line terminal mounted in the disconnect box and to which the line wire is connected, a load terminal mounted in the disconnect box and to which the load wire is connected, and a fuse releasably secured in the disconnect box. The fuse has an operational position wherein the fuse contacts the line terminal and the load terminal thereby creating mechanical and electrical connection between the line wire and first load wire, and a non-operational position such that when the fuse is disconnected from the line terminal and the load terminal the mechanical and electrical connection between the line wire and the load wire is broken.
Patent CA-2295115-C (CA)
Inventor: SMERZNAK MARK ALLEN
IPC: C11D3/22
Filed: 1998-06-08
Granted: 2003-04-22
Abstract: L'invention concerne des compositions détergentes liquides non aqueuses de blanchissage renfermant des particules, qui se présentent sous la forme d'une suspension de substance particulaire et renferment essentiellement des mouchetures colorées, de préférence un agent de blanchiment peroxyde, et un adjuvant de détergence organique, ces composants étant dispersés dans une phase liquide, de préférence structurée au moyen d'un tensioactif. Lorsqu'elles sont utilisées pour nettoyer des tissus, ces compositions permettent un nettoyage et un blanchiment efficace de ceux-ci, tout en présentant un aspect particulièrement agréable.
Patent CA-2296268-C (CA)
Title: Method of manufacturing a press fabric by spirally attaching a top laminate layer with a heat-activated adhesive
Inventor: PAQUIN MAURICE R
IPC: D21F7/08
Filed: 2000-01-19
Granted: 2009-01-06
Abstract: A method for manufacturing a press fabric for a paper machine includes the attachment of a strip of top laminate layer material to a base fabric using a heat-activated adhesive film. The strip of top laminate layer material and heat-activated adhesive film together form a multi-component strip, which is spiraled onto the outer surface of the base fabric, with the side of the strip of top laminate layer material having the heat-activated adhesive film against the outer surface, in a closed helix, and bonded thereto with heat and pressure. The heat-activated adhesive film permits the use of top laminate layer materials that would be otherwise difficult to use and prevent the top laminate layer from migrating during needling.
Patent CA-2300862-C (CA)
Title: Lame porte-objet
Inventor: LORINCZ ANDREW E
IPC: G01N15/10
Filed: 1998-09-03
Granted: 2008-04-01
Abstract: L'invention se rapporte à une lame porte-objet à coloration automatique conçue pour permettre la coloration et la visualisation immédiates de cellules dans un fluide biologique et dans des échantillons tissulaires, de préférence à l'aide d'un microscope à épi-fluorescence. Cette lame porte-objet (11), préalablement préparée, est de préférence enduite d'une coloration (13) fluorescente supravitale qui est recouverte d'un film transparent (16). En cours d'utilisation, on retire ce film et on expose ainsi la coloration (13) de sorte qu'il est possible de déposer un échantillon (14) sur la coloration en vue de leur mélange. Puis on replace le film (16) sur l'échantillon coloré de façon à ce qu'il serve de feuille de couverture et permette une visualisation immédiate. La lame peut inclure des étalons de référence (19, 24) facilitant la mise au point du microscope et permettant des mesures sur les cellules et micro-organismes. Selon une autre réalisation, l'invention se rapporte à une lame porte-objet (11) souple qui peut être repliée de façon à ce qu'une partie destinée à la visualisation (12) de la lame puisse être placée contre un prélèvement (21) afin d'extraire directement de ce dernier un échantillon.
Patent CA-2302761-C (CA)
Inventor: DOWER GORDON EWBANK
IPC: B60K1/04
Filed: 1998-09-03
Granted: 2004-05-04
Abstract: L'invention concerne un véhicule modulaire comportant un module de châssis inférieur (200) préassemblé, un module de châssis supérieur (100) préassemblé, et un moyen de couplage (111, 210, 110, 232) servant à coupler détachable le module de châssis supérieur au module de châssis inférieur. Le module de châssis inférieur (200) comporte des roues permettant au véhicule de se déplacer sur une surface (20, 22) de déplacement; un dispositif qui sert à contenir une source (280) de courant permettant de fournir au véhicule une puissance utile; et un dispositif servant à diriger une puissance motrice commandée de la source de courant vers au moins une des roues. Le module de châssis supérieur (100) comporte un moyen de commande pouvant être lié au module de châssis inférieur (200), et qui permet de commander le fonctionnement du véhicule. Lorsque la source (280) de courant associée à un premier module de châssis inférieur (200) nécessite un service d'entretien, l'invention prévoit un procédé de manipulation du module de châssis supérieur (100) couplé au premier module de châssis inférieur (200); le procédé comporte les étapes consistant à désaccoupler et séparer les deux modules; puis coupler détachable le module de châssis supérieur (100) à un deuxième module de châssis inférieur (200), la source (280) de courant associée du deuxième module de châssis inférieur (200) ne nécessitant pas de service d'entretien; puis faire fonctionner le module de châssis supérieur (100) et le deuxième module de châssis inférieur (200) qui constituent ensemble un véhicule, tout en effectuant le service d'entretien nécessaire à la source (280) de courant du premier module de châssis inférieur.
Patent CA-2305253-C (CA)
Inventor: GARDES ROBERT
IPC: E21B7/06
Filed: 1997-10-09
Granted: 2007-08-21
Abstract: A method and system (10) of drilling multiple radial wells (60) using underbalanced drilling, by first drilling a principal wellbore (16). There would then be provided a first carrier string (30) having a deflection member (50) on its lowermost end. There is then lowered a second drill string (12) that is deflected by the deflection member (50) from the principal wellbore (16). A second fluid is then pumped into an annular space between the second drill string (12) and the carrier string (30) to a position that it co-mingles with a first fluid. There is then provided a volume of fluid to establish an equilibrium within the carrier string (30). The direction of the deflection member (50) is reoriented to a second depth within the borehole. Finally, the drill stri ng (12) and drill bit (46) is lowered to a second depth to drill a second radial well (60) while the well is alive and producing.
Patent CA-2305276-C (CA)
Title: Polyol blends for producing hydrocarbon-blown polyurethane and polyisocyanurate foams
Inventor: HICKEY F LEO
IPC: C08G18/36
Filed: 1998-10-07
Granted: 2008-11-18
Abstract: Disclosed are aromatic polyester polyols, polyester polyol resin blends, methods for preparing such compositions and polyurethane and polyisocyanurate foams made using the compositions, wherein the resin blends generally comprise: (a) an aromatic polyester polyol formed by a reaction between a phthalic acid based material; a hydroxylated material having a functionality of at least 2; and a hydrophobic material; (b) a nonionic surfactant; and (c) a C4-C7 hydrocarbon blowing agent.
Patent CA-2313067-C (CA)
Inventor: VYAKARNAM MURTY N
IPC: A61F2/02
Filed: 2000-06-29
Granted: 2011-04-12
Abstract: The present patent describes a three-dimensional inter- connected open cell porous foams that have a gradient in composition and/or microstructure through one or more directions. These foams can be made from a blend of absorbable and biocompatible polymers that are formed into foams having a compositional gradient transitioning from predominately one polymeric material to predominately a second polymeric material. These gradient foams are particularly well suited to tissue engineering applications and can be designed to mimic tissue transition or interface zones.
Patent CA-2320590-C (CA)
Inventor: BEST TIM
IPC: E04D13/17
Filed: 2000-09-26
Granted: 2005-11-29
Abstract: A ventilation baffle and stop is disclosed for use in buildings having walls made of wall studs, wall plates mounted on top of the wall studs, said wall plates having a top surface and a front surface facing away from an interior of the building, a plurality of spaced apart roof rafters mounted on top of the top surface of the wall plates, and roof sheathing mounted on top of the roof rafters. The ventilation baffle includes a substantially rectangular sheet of stiff material having opposite first and second ends and opposite first and second side edges. The sheet has a first pair of longitudinally extending, parallel, fold lines respectively located close to the opposite side edges of the sheet, said first pair of fold lines dividing the sheet into a rectangular central portion and a first pair of elongated rectangular side edge portions on opposite sides of said central portion. The sheet also includes a second pair of longitudinally extending, parallel, fold lines respectively located between and extending parallel to, the first fold lines and the opposite side edges, said second pair of fold lines dividing the first pair of elongated rectangular side edge portions into a first pair of flange portions positioned adjacent the side edges and a first pair of spacer portions positioned adjacent the central portion. The first pair of elongated rectangular side edge portions are bendable upward relative to the central portion to form upstanding sides, the first pair of flange portions being bendable outwardly relative to the central portion to form tabs positionable adjacent the opposing surfaces of a pair of adjacent roof rafters, said tabs being attachable to an inside surface of the roof sheeting mounted onto the roof rafters, said first pair of spacer portions separating the central portion of the sheet from the tabs and defining an air-flow passageway between the central portion and the roof sheeting. The sheet also has a transversely extending fold line located towards the first end and defining an outer rectangular end portion so that said rectangular end portion can be positioned adjacent to and above the top plate and can be bent downwardly relative to the central portion to define an outer downwardly extending end wall between the opposing surfaces of a pair of adjacent roof rafters and extending downwardly from said central portion substantially into contact with said top plate, said end wall being attachable to the plate.
Patent CA-2322768-C (CA)
Inventor: WILSON SCOTT R
IPC: A61B10/04
Filed: 1999-03-09
Granted: 2008-08-05
Abstract: L'invention porte sur un système de spectroscopie de fluorescence permettant de déterminer la nature de tissus. On utilise à cet effet la fluorescence naturelle de tissus endogènes sans recourir à des agents renforçateurs de fluorescence pour distinguer les tissus normaux, hyperplastiques, adénomateux ou d'adénocarcinomes. Ledit système: fournit une image endoscopique agrandie permettant de localiser aisément l'emplacement d'un tissu pour le caractériser par biopsie optique; permet l'utilisation d'un dispositif intégré de diagnostic et de traitement immédiats sans avoir à changer d'instrument ou à relocaliser à l'emplacement du tissu; peut s'intégrer à des équipements d'endoscopie existants pour lancer ou afficher un diagnostic; constitue un outil additionnel de classification histopathologique des tissus; ou permet des traitements ultérieurs se basant sur son diagnostic de biopsie optique.
Patent CA-2324030-C (CA)
Title: Parking brake assembly having quiet apply
Inventor: DJORDJEVIC NEBOJSA
IPC: B60T7/08
Filed: 2000-10-19
Granted: 2007-10-16
Abstract: A parking brake assembly for a vehicle has a mounting bracket, a handle assembly and a clutching mechanism. The mounting bracket has a stop. The handle assembly is pivotally mounted on the mounting bracket for rotation about a first axis. The handle is moveable between a brake applied position and a brake release position. The handle has an actuator. A cam is pivotally mounted on the handle about a second axis offset from the first axis. The cam has a cam surface which varies radially from the second axis. The cam is biased to engage the stop. A clutch spring frictionally engages the cam and is operably connected to the actuator. Movement of the actuator in response to manual manipulation responsively moves the clutch spring to decrease the frictional engagement, thereby enabling the cam to engage with the stop. In response to releasing the actuator, the clutch spring moves to increase frictional engagement with the cam thereby retaining the cam in a position to engage the stop and prop the handle in a braking position.